XD567

XD567 DIP8 / XL567 SOP8 1 Features 3 Description • The XDXL/567 are general purpose tone decoders designed to provide a saturated transistor switch to ground when an input signal is present within the passband. The circuit consists of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder. External components are used to independently set center frequency, bandwidth and output delay. 1 • • • • • • 20 to 1 Frequency Range With an External Resistor Logic Compatible Output With 100-mA Current Sinking Capability Bandwidth Adjustable From 0 to 14% High Rejection of Out of Band Signals and Noise Immunity to False Signals Highly Stable Center Frequency Center Frequency Adjustable from 0.01 Hz to 500 kHz 4 Simplified Diagram 2 Applications • • • • • • • Touch Tone Decoding Precision Oscillator Frequency Monitoring and Control Wide Band FSK Demodulation Ultrasonic Controls Carrier Current Remote Controls Communications Paging Decoders 1 1 XD567 DIP8 / XL567 SOP8 5 Device Comparison Table DEVICE NAME XDXL/567 DESCRIPTION General Purpose Tone Decoder 6 Pin Configuration and Functions 8-Pin PDIP (P) and SOIC (D) Package Top View Pin Functions PIN NAME NO. TYPE DESCRIPTION GND 7 P Circuit ground. IN 3 I Device input. LF_CAP 2 I Loop filter capacitor pin (LPF of the PLL). OUT 8 O Device output. OF_CAP 1 I Output filter capacitor pin. T_CAP 5 I Timing capacitor connection pin. T_RES 6 I Timing resistor connection pin. VCC 4 P Voltage supply pin. 2 XD567 DIP8 / XL567 SOP8 7 Specifications 7.1 Absolute Maximum Ratings (1) (2) (3) MIN MAX UNIT Supply Voltage Pin 9 V Power Dissipation (4) 1100 mW 15 V V3 −10 V V3 V4 + 0.5 V 70 °C Soldering (10 s) 260 °C Vapor Phase (60 s) 215 °C Infrared (15 s) 220 °C 150 °C V8 XDXL/567 0 PDIP Package Operating Temperature Range SOIC Package −65 Storage temperature range, Tstg (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Recommended Operating Conditions indicate conditions for which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the Recommended Operating Conditions. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication of device performance. 7.2 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply Voltage 3.5 8.5 VIN Input Voltage Level –8.5 8.5 V V TA Operating Temperature Range –20 120 °C 7.3 Thermal Information XDXL/567 THERMAL METRIC (1) D P UNIT 8 PINS RθJA Junction-to-ambient thermal resistance 107.5 53.0 RθJC(top) Junction-to-case (top) thermal resistance 54.6 42.3 RθJB Junction-to-board thermal resistance 47.5 30.2 ψJT Junction-to-top characterization parameter 10.0 19.6 ψJB Junction-to-board characterization parameter 47.0 30.1 (1) °C/W For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. 3 XD567 DIP8 / XL567 SOP8 7.4 Electrical Characteristics AC Test Circuit, TA = 25°C, V+ = 5 V PARAMETER TEST CONDITIONS Power Supply Voltage Range XDXL/567 XDXL/567 MIN TYP MAX MIN TYP MAX 4.75 4.75 UNIT 5.0 9.0 5.0 9.0 V Power Supply Current Quiescent RL = 20k 6 8 7 10 mA Power Supply Current Activated RL = 20k 11 13 12 15 mA 25 mVrms Input Resistance 18 Smallest Detectable Input Voltage IL = 100 mA, fi = fo Largest No Output Input Voltage IC = 100 mA, fi = fo 20 10 Largest Simultaneous Outband Signal to Inband Signal Ratio Minimum Input Signal to Wideband Noise Ratio Bn = 140 kHz Largest Detection Bandwidth 12 Largest Detection Bandwidth Skew Largest Detection Bandwidth Variation with Temperature Largest Detection Bandwidth Variation with Supply Voltage 15 25 15 4.75 – 6.75 V 10 0 < TA < 70 −55 < TA < +125 mVrms 6 6 dB −6 −6 dB 14 16 1 2 10 ±2 500 0.5 Fastest ON-OFF Cycling Rate 14 18 % of fo 2 3 % of fo ±0.1 ±1 100 35 ± 60 35 ± 140 Center Frequency Shift with Supply Voltage 4.75 V – 6.75 V 4.75 V – 9 V kΩ 15 ±1 100 20 20 ±0.1 Highest Center Frequency Center Frequency Stability (4.75 – 5.75 V) 20 1.0 2.0 fo/20 %/°C ±5 %V 500 kHz 35 ± 60 35 ± 140 ppm/°C ppm/°C 0.4 2.0 2.0 %/V %/V fo/20 Output Leakage Current V8 = 15 V 0.01 25 0.01 25 µA Output Saturation Voltage ei = 25 mV, I8 = 30 mA ei = 25 mV, I8 = 100 mA 0.2 0.6 0.4 1.0 0.2 0.6 0.4 1.0 V Output Fall Time 30 30 ns Output Rise Time 150 150 ns 4 XD567 DIP8 / XL567 SOP8 7.5 Typical Characteristics Figure 1. Typical Frequency Drift Figure 2. Typical Bandwidth Variation Figure 3. Typical Frequency Drift Figure 4. Typical Frequency Drift Figure 5. Bandwidth vs Input Signal Amplitude Figure 6. Largest Detection Bandwidth 5 XD567 DIP8 / XL567 SOP8 Typical Characteristics (continued) Figure 7. Detection Bandwidth as a Function of C2 and C3 Figure 8. Typical Supply Current vs Supply Voltage Figure 9. Greatest Number of Cycles Before Output Figure 10. Typical Output Voltage vs Temperature 6 XD567 DIP8 / XL567 SOP8 8 8.1 Detailed Description Overview The XDXL/567 is a general purpose tone decoder. The circuit consists of I and Q detectors driven by a voltage controlled oscillator which determines the center frequency of the decoder. This device is designed to provide a transistor switch to ground output when the input signal frequency matches the center frequency pass band. Center frequency is set by an external timing circuit composed by a capacitor and a resistor. Bandwidth and output delay are set by external capacitors. 8.2 Functional Block Diagram 7 XD567 DIP8 / XL567 SOP8 DIP 87 XD567 DIP8 / XL567 SOP8 SOP 79